UV filters block the invisible UV component of light from the sky, which can cause blur and a blue cast. UV Filters are ideal for photography in high altitudes, by the sea and in regions with very clean air. Because the glass is colourless, colour rendition is not altered, aside from the elimination of the unwanted blue cast, and no increase in exposure is required. That makes a UV Filter ideal protection for the front of the lens against dust and other particles that might disrupt or reduce the clarity of the taken image and it can be also kept on the lens at all times. Features: Prevents UV light from entering the camera lens which eliminates haze and makes images clearer - Increases colour distinction Serves as a permanent lens protector